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On Mon, 10 Jan 2005 10:50:05 -0500, Dave Hall
wrote in : On Fri, 07 Jan 2005 21:36:36 -0800, Frank Gilliland wrote: On Sat, 08 Jan 2005 05:19:54 GMT, "Landshark" wrote in : "Dave Hall" wrote in message ... On Fri, 7 Jan 2005 10:57:27 -0500, (Twistedhed) wrote: From: (Dave Hall) wrote: The "DX" has nothing to do with the amount of splatter and the distortion a signal may have. The only effect that "DX" may have is heterodyning of co-channel signals. In any case, when my observations were made, the "DX" was not running heavy enough that a clean sample of any particular transmission could not be made. Ummm, no Dave. DX has everything to do with DX splatter. He's right, Dave. You can receive more than one skip signal from the same transmission, and their phasing can cause intermodulation distortion in any RF stage of your receiver. No dice Frank. The effect you have described is commonly referred to as "multipath". a.k.a, "fading". The differences in phase angles of the received signals can cause either an addition to or a subtraction from the fundamental signal. But it does not cause it to splatter. No it doesn't, and that's not what I said. I said that a non-linear stage in the receiver can turn that fading into what appears to be splatter. If you want an example I have a couple cheap shortwave radios that do exactly that; you pay for shipping and you can examine them all you want. |
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